I'm in my fifties so this is a 1970s childhood...
Having loads of freedom in the school holidays, playing out for hours without my parents necessarily having a clue where I was (not that they'd be happy if they knew, I wasn't supposed to go further than round the block without telling them)...
...but being scared shitless of ponds, farms, electricity pylons, railway lines, matches, slippery floors and escalators because of all the terrifying public information films. (Not such a bad thing, if you ask me.)
Every single summer's day in the 1970s being hot, which they can't have been, but it definitely felt that way.
Sitting out on the playing fields in summer term with the smell of fresh-cut grass.
Watching Swap Shop on a Saturday morning, which reminds me...
...decent children's TV! (provided your parents weren't watching something else on The Only TV In The House...)
Not understanding why you weren't allowed to go camping on your own when the Famous Five were allowed to.
Thinking the plastic rings that came with Twinkle comic were amazing, and cutting out the dress-up figure and clothes on the back of the Bunty. (I sometimes used to make my own too...)
Really festive Christmas decorations, all shiny foil, fire-hazard glimmery artificial tree and paper chains you'd made yourself. And your parents' drinks trolley groaning with Advocaat and Babycham every Christmas, not that you knew what they tasted like or even were.
Really wanting a 10-colour biro and a Sindy doll ... and nearly exploding with excitement at getting them.
Going in for WH Smith's 'Win a Pony' competition(!!!) every year and never winning.
Taking glass pop bottles back to the shop to get 10p back.
Hearing the rag-and-bone man in the street. (No, I wasn't born in 1920. 😄)
Tupperware beakers of squash on school trips. (As Jeannette Winterson once observed, the Tupperware always heated up and burnt your mouth.)
Playing out on bikes or chalking the pavement up to play hopscotch. And someone would usually bring a spacehopper out too, but they were never really as boingy as you'd like them to be.
Never getting to play the Pong game you got for Christmas because The Only TV In The House was always in use (and, of course, always being the one who had to turn it over because there was no remote and 'your legs are the youngest' 😄)
Getting excited when the teacher wheeled in the TV on a big trolley... and then waiting half the lesson to watch anything because somehow there was always a technical hitch of some kind. (Looking back at these, it's a bit sad how many of them revolve around the TV... 😄)
Findus crispy pancakes with Angel Delight to follow. Vesta curries were for people who were 'a bit fancy'.
Ladybirds. Ladybirds Every Freaking Where. Or was that just 1976?
(I'm bound to think of loads more as soon as I hit post...)